Port Costa, California | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    49°
    Monday 4/22
    Forecast night icon
    49°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the lower 50s. West winds 5 to 15 mph.
  • Forecast day icon
    Tuesday
    Partly Cloudy
    58°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Tuesday 4/23
    Day
    58°
    Partly Cloudy
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy in the morning then becoming sunny. Highs in the lower 70s. Southwest winds 5 to 15 mph.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows around 50. West winds 10 to 15 mph.
  • Forecast day icon
    Wednesday
    Partly Cloudy
    58°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Wednesday 4/24
    Day
    58°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 70s. Southwest winds 5 to 10 mph.
    Night Details
    Partly cloudy. Lows in the upper 40s. West winds 10 to 15 mph.
  • Forecast day icon
    Thursday
    Partly Cloudy
    57°
    Forecast night icon
    Night
    Partly Cloudy
    51°
    Thursday 4/25
    Day
    57°
    Partly Cloudy
    Forecast day icon
    Night
    51°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the mid 60s to lower 70s.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Friday
    Partly Cloudy
    60°
    Forecast night icon
    Night
    Mostly Clear
    47°
    Friday 4/26
    Day
    60°
    Partly Cloudy
    Forecast day icon
    Night
    47°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. Highs in the upper 60s.
    Night Details
    Mostly clear. Lows around 50. Highs in the lower 70s.
  • Forecast day icon
    Saturday
    Mostly Sunny
    63°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Saturday 4/27
    Day
    63°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows around 50. Highs in the lower 70s.
    Night Details
    Mostly clear. Lows around 50. Highs in the lower 70s.
  • Forecast day icon
    Sunday
    Mostly Sunny
    65°
    Forecast night icon
    Night
    Clear
    47°
    Sunday 4/28
    Day
    65°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows around 50. Highs in the lower 70s.
    Night Details
    Clear. Lows around 50.
  • Forecast day icon
    Monday
    Sunny
    67°
    Forecast night icon
    Night
    Clear
    49°
    Monday 4/29
    Day
    67°
    Sunny
    Forecast day icon
    Night
    49°
    Clear
    Forecast night icon
    Day Details
    Sunny. Highs in the lower to mid 70s.
    Night Details
    Clear. Low temperature around 49F. Dew point will be around 43F with an average humidity of 67%. Winds will be 8 mph from the W.
  • Forecast day icon
    Tuesday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    50°
    Tuesday 4/30
    Day
    70°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 44F with an average humidity of 53%. Winds will be 6 mph from the NW.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 41F with an average humidity of 55%. Winds will be 7 mph from the W.
  • Forecast day icon
    Wednesday
    Sunny
    69°
    Forecast night icon
    Night
    Clear
    50°
    Wednesday 5/1
    Day
    69°
    Sunny
    Forecast day icon
    Night
    50°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 69F. Dew point will be around 43F with an average humidity of 49%. Winds will be 6 mph from the NW.
    Night Details
    Clear. Low temperature around 50F. Dew point will be around 40F with an average humidity of 54%. Winds will be 8 mph from the W.